Multiplayer Level Unlocks

Your level represents the amount expierience (Exp.) that you receive in the game. The more Exp. you accumulate, the closer you get to advancing in level. With most levels you receive receive unlockable items such as titles, characters and weapon skins. All of the things you do unlock are purely aesthetic. Similar to Halo: Reach, Exp. is acquired throughout all game modes including Campaign, Horde, Beast, and Versus.